MuTr/MuTrig Performance of Run13 RIKEN/RBRC Itaru Nakagawa 1

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W TRIGGER REJECTION POWER 4

W trigger status 5 Compare above trigger rates in three different periods.

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Rejection Power Summary W triggers were formed by 5 different trigger mixes with the combination of SG1, RPC1&3, MUID1D Rejection Power was sufficient to be <2kHz for the total of 5 triggers. Compared to Run12, rejection power is stronger due to MUID1D in the trigger mix. SG1 and RPC were operated loose condition. 7

STABILITY CHECK 8

ADTX/MRG Error History Courtesy to Sanghwa’s Stability Monitor Occasional error, but not continuous. Most of errors are cured right after they first appear. MRG channel number which detected Error 0 is no error South North 9

Overall stable. Shallow slop may come from luminosity increase. North South St-1 St-2 St-3 10 Fake Hit Rates History Hot! (threshold failure) Low efficiency MuTr HV problem, etc

Fake Hit Rates vs. BBC Rate 11 Fake Hit Rates are sampled from abort gap, however it is not free from beam effect presumably due to long time constant of MuTr signal. So Fake rates are linearly proportional to BBC rate. Thus data/(linear fit) should distribute around 1. North Station-2 Octant Average Hit Rates Oct-1Oct-2Oct-3Oct-4 Oct-5Oct-6Oct-7Oct-8 Hot! Too low efficiency?

Data / Linear Fit Distribution 12 90%. North Station-2

Fake Hit Rates vs. BBC Rate 13 Octant-1 and Octant-8 shows double band. North Station-1 Octant Average Hit Rates Oct-1Oct-2Oct-3Oct-4 Oct-5Oct-6Oct-7Oct-8

Fake Rates Close Look 14 May 18, 2:00 ~ May 19, 19:00 ~ ~ Jun. 3, 10:00 The fake rates of oct-1, 8 jumped by about double. Timing is a part by 1.5days. The fake rates of both octants came back to as they used to be at the same time. North Station1 Fake Rates Before oct-8 jump after oct-8 jump after oct-1 jump

South Fake Rates Close Look (May 4, 3:30) ~ (May 28, 4:50) Station-1Station-2 Sudden rate change is most likely to be caused by hot strip appears and disappears after a while. So the trigger should be OK.

SG1-LL1 Efficiencies ADTX MuTr MRG LL1 DCMIF DCM GL1 Trigger Identical hit information Identical hit information Josh Perry’s Online Monitor LL1 boards developed by U.Iowa

LL1 Efficiency (South) Overall, good efficiency except for more frequent efficiency drop in Octant-5 than others (known from Run12). 17 Courtesy of Sanghwa’s Stability Monitor

LL1 Efficiency (North) Relatively frequent low efficiency seen in Octant-1 and 5. These tiles are located at same location on the LL1 board (not clear if it is correlated). 18

Luminosity Weighted Average Efficiency 19

LL1 Efficiency (South) Lumi Weighted Plot by Sarah Coussin 20

LL1 Efficiency (North) Lumi Weighted Plot by Sarah Coussin 21

LL1 Efficiency Weighted Average OctantSouthNorth %95.5 % Calculated by Sarah Coussin 22 Over all LL1 efficiency > 98% except for N.Oct1~95%

MUTR PERFORMANCE 23

Station-3 and Dry Air System 24

25 MuTr Beginning of Run13 Slide from Quarterly Meeting (Sanghwa)

HV Status at the End of Run13 South HVNorth HV 26 Disabled Feb.5 Disabled May 11

MuTr Disabled HV Channel History RunDateSouthNorth 13 Feb.4, (2)2 (0) Jun.8, (1)3 (1) ½ Clamp Install (Top Octants) 12 Jan. 20, (4)8 (2) Jun. 20, (4)9 (3) ½ Clamp Install (Bottom Octants) 11 Feb. 17, (3)5 (2) Apr. 27, (3)5 (2) Cramp Prototype Test North Oct.6,7 10 Jan. 25, (1)3 (2) May 26, (2)2 (2) Decapacitation (South) 9 Feb. 5, (5)3 (0) Jul. 5, (5)6 (2) Decapacitation (North) 8 27

RUN13

Radio Graph (South) Reconstructed Tracks Plot by Margaret A. Jezghani (GSU)

Radio Graph (South) Reconstructed Tracks Plot by Margaret A. Jezghani (GSU)

Summary Total W trigger rates (trigger mix SG1, RPC1&3, MUID) survived BBC~ 5MHz without prescaling. All ADTX/MRG remain unmasked except for temporary periods. LL1 Efficiency Occasional low efficiency observed in South Octant-5, North Octant-1 & 5 though, the luminosity and runtime weighted average turned out to be >95%. MuTr FEE also remained unmasked. MuTr HV are survived mostly, except for one channel which is masked in the middle of run. MuTr acceptance was active except for half octant in North arm. 31

SHUTDOWN PLAN

Cathode Cable in mis-contact : South Station-1 Oct-5, Gap-2 33

High Noise Rate in South St-1 Oct-3 Gap-2 34

North Station-3 Octant-1 North Station-3 Octant-1 stands outSee next page for gap decomposition 35

North Station-3 Octant-1 Gap-2 <-Gap-1 is OK 36

North Arm WestEast Station-1 Noisy ADTX Check grounding Noisy ADTX Check grounding Station-2,3 37 Need to change FEE boards S3 O2 C S3 O7 C S1 Q3 C3 HV St-3 Oct4 N341-0

South Arm West East Noisy ADTX Check Grounding Noisy ADTX Check Grounding Station-2, ,11138 S3 O5 C S2 O3 C S3 O4 C5 HV St3, Oct1 S311-0 (couldn’t fix) HV St3, Oct7 S371-6 (couldn’t fix)

MuTr RX Card Debugging (1) RX card transmits electrical signal to optical. We have only 3 spare good boards and 7 spare boards to be debugged. To be tested at John Haggerty’s test bench. 39 MUTR FEE RX card DCM opticalelectrical

MuTr RX Card Debugging (2) 40

Debugging MRG FPGA Symptom South Octant-1Constant Rates (Threshold dependent) South Octant-3Excursion w/ time constant of ~20minutes North South Run12 Octant-1 Cosmic SG1~50kHz Run12 Octant-1 Physcs SG1~1kHz Plot by Dahee (Ewha University) South Octant-3 Above two octants are running with older version of MRG FPGA in Run13. Both are observable with cosmic circumstances FPGA: verilog HDL 41

Shutdown Summary Itaru/Minjung/Kiyoshi/Takeru + LANL crews work on maintenance Address on High noise ADTX Fix loose cathode cable connection in South St-1 Debug MRG FPGA Code Replace MuTr-FEE frequently cause errors MuTr HV server upgrade (Martin) Repair spare RX cards Inspect dry air covers (fragile tube connection). 42

South Disabled List S1710 ✔ S2717 ✔ S3110 ✔ S3312 ✔ S3815 ✔ S2113 S2717 S2131? 3815 S3312 S1225 S1710 S3110 Run# Broken Anode/Card listed in disabled list

Disabled List N1330 ✔ N1416 ✔ N2226 ✔ N3211 ✔ N3410? N2226 N1416 N2512 N3211 N3714? N3410 N1330 North N2134

Acceptance 45 Possible loose cathode connection when SMM moved to run position before Run13

MuTr Radio Graph (North) Plot by Laura Patel (GSU) Octant-2

Radio Graph MuTr South Plot by Laura Patel (GSU) Run#388266